Wolfram Function Repository

Instant-use add-on functions for the Wolfram Language

Function Repository Resource:

 GraphElementData

Source Notebook

Get information about named functions used in VertexShapeFunction and EdgeShapeFunction

Contributed by: Jaebum Jung

ResourceFunction["GraphElementData"]["shape"]

represents a function that generates a shape for vertices or edges when applied to VertexShapeFunction or EdgeShapeFunction in a graph.

ResourceFunction["GraphElementData"]["shape","property"]

gives the specified property for the named function "shape".

ResourceFunction["GraphElementData"][{"shape",opts},"property"]

gives the specified property for the named function "shape" with the options opts.

Details

ResourceFunction["GraphElementData"] is typically used as a setting for VertexShapeFunction and EdgeShapeFunction in different graph functions.
ResourceFunction["GraphElementData"]["shape"]["coords","element","metadata"] gives the graphics primitives used to render a vertex or edge in a graph.
Possible properties in ResourceFunction["GraphElementData"]["shape","property"] include "Preview", "Options" and "ElementPreview".
VertexShapeFunction→ResourceFunction["GraphElementData"]["shape"] specifies that each vertex should be rendered with the primitives provided by ResourceFunction["GraphElementData"]["shape"][{x,y},v,{w,h}], where {x,y} is the center, v is the vertex name, and {w,h} are the width and the height.
EdgeShapeFunction→ResourceFunction["GraphElementData"]["shape"] specifies that each edge should be rendered with the primitives provided by ResourceFunction["GraphElementData"]["shape"][{{x1,y1},{x2,y2},…},vw], where {{x1,y1},{x2,y2},…} are line segments and vw is the edge.
The data resource VertexShapeFunction contains all named vertex functions. Use ResourceData["VertexShapeFunction"] to get a list of them.
The data resource EdgeShapeFunction contains all named vertex functions. Use ResourceData["EdgeShapeFunction"] to get a list of them.

Examples

Basic Examples

Preview the "HalfFilledArrow" edge shape function:

In[1]:=
ResourceFunction["GraphElementData"]["HalfFilledArrow", "Preview"]
Out[1]=

List all supported options of the "HalfFilledArrow" edge shape function:

In[2]:=
ResourceFunction["GraphElementData"]["HalfFilledArrow", "Options"]
Out[2]=

Draw edges using the "HalfFilledArrow" edge shape function:

In[3]:=
Graph[{1 \[DirectedEdge] 2, 2 \[DirectedEdge] 3, 3 \[DirectedEdge] 1}, EdgeShapeFunction -> ResourceFunction[ "GraphElementData"][{"HalfFilledArrow", "ArrowSize" -> .2}]]
Out[3]=

Preview the "Square" vertex shape function:

In[4]:=
ResourceFunction["GraphElementData"]["Square", "Preview"]
Out[4]=

Draw vertices using the "Square" vertex shape function:

In[5]:=
Graph[{1 \[DirectedEdge] 2, 2 \[DirectedEdge] 3, 3 \[DirectedEdge] 1}, VertexShapeFunction -> ResourceFunction["GraphElementData"]["Square"], VertexSize -> Small]
Out[5]=

Version History

  • 1.0.0 – 20 March 2023

License Information